International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 05 Issue: 07 | July 2018
p-ISSN: 2395-0072
www.irjet.net
EXPERIMENTAL WORK ON SCC USING POZZOLANIC MATERIALS Omkar A Kurdekar1, Prashanth.B.S2, Pawananjaya R. Malladi3, Devaraj G C4 1,2,3,4Assistant
Professors, Department of Civil Engineering, Jain Institute of Technology, Davangere, Karnataka, India. ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract— Self-compacting concrete (SCC) is one of the type of concrete which will compact by its own weight. Now a day’s, due to the increase in cost of cement and sand it is very much important to think for other materials as a replacement of concrete materials. In this present study an attempt has been made to partial replacement of cement by pozzolanic materials like Rice husk ash, Bagasse ash (10%, 20% and 30%) and sand by quarry dust (30%, 50% and 70%). Fresh property was done for all the replacement and hardened properties were done at 7, 14, 28, 56 and 91 days for compressive strength and 7 and 28 day strength for split and flexural strength.
Table - 1 Tests for Cement
1. INTRODUCTION The main goal of any civil engineer is to minimize the cost of the construction. Rapid increase in construction, leads to the shortage of conventional construction materials. Ordinary Portland cement (OPC) is normally used as the primary binder to produce concrete. The environmental issues associated with the production of OPC are well known. The amount of carbon dioxide (CO2) released during the manufacture of OPC due to the calcinations of limestone and combustion of fossil fuel is in the order of one ton for every ton of OPC produced. In addition, the extent of energy required to produce OPC is only next to steel and aluminum. India has a major agribusiness sector which has accomplished amazing triumphs throughout the last three and a half decades. Agriculture waste or residue is made up of natural sources such as rice straw, oil palm empty fruit bunch, sugar cane bagasse, coconut shell and others. The quarry dust is the by-product which is formed in the processing of the granite stones which broken downs into the coarse aggregates of different sizes. Quarry dust has been proposed as an alternative to river sand that gives additional benefit to concrete.
SL.NO
PHYSICAL TEST
RESULT OBTAINED
AS PER IS:81121989
1
Fineness (retained on 90µm IS sieve) (%)
7.25
`Up to 10 maximum
2
Normal consistency (%)
32
-
3
Specific gravity of cement
3.04
3 to 3.15
4
Vicat time of setting (minutes) a)Initial setting time b)Final setting time
79 365
30 min600 max
5
Soundness of cement(mm)
2
Up to max
2.2 Fine aggregate For the studies, the river sand of Zone-II is used in all the references. IS: 383-1970 defines the fine aggregates as 7.25particles, which will pass through 4.75mm IS sieve and retained on 150 micron. Table - 2 Tests for Fine Aggregate
2. MATERIALS USED AND ITS PROPERTIES
SL NO
PHYSICAL TEST
RESULT OBTAINED
AS PER IS:3831970
1
Specific gravity of F.A
2.48
2.60 2.70
to
2
Fineness modulus of F.A
3.28
2.20 3.20
to
2.1 Cement Cement is the fine material, which is used as a binding material. There are different types of cement are obtained in the market. Some of them are Ordinary port land cement(OPC), Portland-Pozzolana cement(PPC), Rapid hardening Portland cement, Portland slag cement, and High alumina cement. Generally OPC 43 grade is used for the investigation and construction works.
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